Bell’s Theorem: Proving Quantum Entanglement Is Real

  1. Bell’s Theorem was introduced in 1964 by physicist John Bell.
  2. It provides a way to test whether quantum entanglement is real or just hidden variables.
  3. Bell derived mathematical inequalities that classical physics must obey.
  4. Quantum mechanics predicts violations of these inequalities through entanglement.
  5. Experiments repeatedly show Bell’s inequalities are broken—favoring quantum theory.
  6. This means entangled particles really do influence each other instantly.
  7. The results rule out “local hidden variables” as an explanation of quantum behavior.
  8. Bell’s Theorem turned entanglement from speculation into experimental science.
  9. Nobel Prizes in 2022 honored physicists who confirmed Bell’s predictions.
  10. It cements entanglement as a fundamental, nonlocal feature of reality.